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《Journal of Jiangxi Normal University (Natural Sciences Edition)》 2005-05
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Material Compositions and Engineering Geological Properites of Guilin Red Soil

WEI Fu-cai(Institute of Karst Geology,Chinese Academy of Geology Sciences,Guilin Guangxi 541004,China)  
On the basis of the analysis of differential thermal, X-ray diffraction,electron microscope scanning and about thousand groups of geotechnical test data,the material compositions and engineering geological properties of Guilin red soil are as follows:(1) The second clay minerals is made mainly of kaolinite,illite and chlorite and so on in the red soil.In addition,there are little minerals of montmorillonite and vermiculite.(2) The iron and aluminum oxides are rich and the content of clay grain is usually large than 50% in the red soil.(3) The water content,the void ratio,the liquid limit and the shearing strength are high;the natural unit weight,the saturability and the specific surface area are large;the cation exchange capacity,the compressibility,the permeability coefficient and the slaking are small.(4) The red soil possesses weak-moderate expansion and shrinkage properties.
【Fund】: 国土资源部百名优秀青年科技人才计划资助项目
【CateGory Index】: P642.132;
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